Device for searching objects within wide visual field

Details Device for searching objects within wide visual field Device for searching objects within wide visual field

1985-08-05

1987-04-28

Hix, L. T.

Optics: measuring and testing

Range or remote distance finding

With photodetection

356 4, 356376, 354403, 364561, 901 47, G01C 300

Patent

active

046609695

ABSTRACT:
A visual field searching device is arranged to divide the visual field to be searched into a plurality of intermediate fields each of which is larger than a constituent unit field; to select, for each of the intermediate fields, a typical or representative object distance data from among object distance data obtained for individual constituent unit fields included in each intermediate field; further, for each intermediate field, to discriminate whether the representative distance data thus selected is in a predetermined relation to other object distance data; and after that, to perform a signal processing operation to obtain necessary information by processing only the number of data representing the intermediate fields instead of processing all the data for all the constituent unit fields.

REFERENCES:
patent: 4300836 (1981-11-01), Holmes et al.
patent: 4534636 (1985-08-01), Sugawara

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